Water system



WATER SYSTEM Filed June 25, 1940 INVENTOR.

JOHN WEE/v52 OZNELL BY I f/a v Patented Jan. 27 1942 UNITED STATES PATENT WATER SYSTEM John wel'nel' omen, Philadelphia, Pa. Application June 25, .1940, Serial No. 342,220 7 (Cl. 137-19) I f r a 3 Claims.

This invention relates to water systems such as are commonly included in municipalities for the purpose ofsupplying individual households with water.

At the present ordinarily include a' single main from which water is 'drawn into each house to supply both the hot and cold water of'th'e particular house. With the now known systems, the presence of a water heater in a house gives risetoj'a condition in which water backs up into the main as an incident to ,increased pressure, due to, raising of the temperature of the water by theheater. When the water is thus backed up into the main,

-- impurities are often carried with it which have contaminated thewater supply. 1

The presentfinvention has in most objective, the elimination of this backing up of water as an incident to operation of the householdwater, heaters. 'In .carrying out this objective the, invention proposes the provision of a' water system which comprises a supply main from which branches of! a pair of auxiliary mains for each row 01' houses. One of these auxiliary mains will be thesource oi? supply for water which is to be heated by the heaters in the houses.

An important object of the invention is the inclusion of a one-way check valve at the ioinder of the hot water auxiliarymain to thesupply main. With a one-way check valve so included,

any backing up of water which ordinarily might be caused by the operation of the household heatersis precluded.

The increase of pressure in the water as an incident to the rise in' temperature thereof is inevitable. Accordingly, provision must be made for this increased pressurein the water. Ordinarily it is not practical to accommodate the increase of pressure in the faucets, or other outlets in the house, and the invention, therefore, has inview, as a further object, the provision of a water system of the character above noted in which a so-called riser is connected with the hot water auxiliary main." This riser provides a column of water which may fluctuate with'changes.

in pressure of the water in the hot water auxiliary main.

The other auxiliary main will supply the cold water to the several houses, and being connected directly to the supply main, entirely independently of the hot water auxiliary main; it is impossible for the water in the cold water auxiliary main to become contaminated'from any condiin which the system time municipal water systems i view, as its foremain will take water from tions which might exist in, the hot water auxiliary main. f V g Another somewhat particular object of the invention is the provision of a water system of the character above noted which includes a one-way check valve at the ioinder of the hot water auxiliary main to the supplymain, together with instrumentalities for testing said one-way check valve as occasion demands to insure of the proper operation thereof, and which instrumentalities may also accommodate the removal of the check valve for repair or adjustment should oc casion demand.

Various other more detailed tages of the invention will in part become apparent, and in part be hereinafter stated, as the description of the invention proceeds.

The invention, therefore, comprises a water system which consists of a supply main. A'pair of auxiliary mainsbranch' ofl fromthe supply main, one of theauxiliary mains being intended to supply cold water, while the other auxiliarymain is. intended to supply "the water that is to be heated. The ioinder of the hot water aux iliary main to the supply includes a oneway check valve while suitablev means, such as a riser, is associated withvthe hotwater auxiliary main for accommodating .chang'esof pressure of the water therein. H

For a full andmore complete understanding of the invention reference may bev had to the'following description and accompanying drawing, wherein Figure l-is a perspective view, largely diagrammatic, of a portion of a water'system which is designed in accordance with the precepts of this invention, and a Figure 2 is an enlarged detailed view of the one-way check valve and associated instrumentalities.

Referring now reference characters denote and flrst'more particularly to Figure l, a 'row oi houses is represented at row B being identified by the reference character III. everyday household use each of the houses l0 must include hot and cold water. Aheater is, therefore, represented diagrammatically at H, for heating water that is to be used in each house I.

Asupply main is shown to the drawing, wherein like at l2, and this supply the reservoir or other source of supply, for the particularmiihicipality isinstalled. Branching oi'f OFFICE gt 1 objects and advancorresponding parts,

R, each house in the In order to meet the requirements 01' V Conduits l5 connect the cold water auxiliary supply main II with the cold water system in.

each house III, while other conduits l6 connect the hot water auxiliary supply main IS with the water heater system represented at I I.

At a point conveniently close to the ioinder of the hot water auxiliary main J3 to the supply main I2, and in the auxiliary main I3, is a oneway check valve designated V. This valve V is designed and arranged to permit water to flow irom the supply main I2 into the auxiliary main H, but positively prevents any backing up of water from the auxiliary main l3 into the supply main l2. This valve V may be any of the known one-way check valves found suitable for the particular purpose required thereof. The invention has particularly in mind an arrangement including a hand operated gate valve that will be located on each side of the check valve V. One of these gate valves is shown at H, and the other at l8. These gate valves l1 and it may be operated in appropriate manner to test the check valve V, and they also may be closed to permitof the removal of the check valve V for adjustment or repair.

When the heaters ll of the houses III are operated to increase the temperature of the water, the pressure of the water will increase, and arrangement must be made for relieving this increased pressure.

In accordance with this invention the relieving .means is associated with the hot water auxiliary main I3, and takes the form of a riser is that is connected to the auxiliary main l3 as by the conduit shown at 20. This riser i9 takes the form of a vertical tube or pipe which may be suitably arranged and extends up a sufllcient height so that a column of water included therein may fluctuate with variations in pressure of water in the auxiliary main l3.

In testing the valve V the gate valve ll immediately adjacent the supply main l2 will first be closed, after which the petcock at 2| may be opened. If the valve V is functioning properly, only that amount of water which is included between the valve V and the gate valve I! will come out of the petcock 2 I. However, if the test should indicate that repair or adjustment in the valve V is required, the same may be removed by closing both the valves l1 and [8.

While a preferred specific embodiment of the invention is hereinbeiore set forth it is to be clearly understood that the invention is not to be limited to the exact constructions illustrated and described, because various modifications 0! these details'may he provided in putting the invention into practice within the purview ot'the appended claims.

I claim:

1. In combination, a plurality of houses that are to be supplied with water and each including a water heater, a water system for supplying water to the houses consisting of a supply main, a cold water auxiliary main, a conduit extending from said cold water auxiliary main to each house, a hot water auxiliarly main, a conduit extending from said hot water auxiliary main to the water heater of each house, and a one-way check valve included in said hot water auxiliary main for preventing water passing from said hot water auxiliary main to said supply main.

2. In combination, a plurality of houses that are to be supplied with water and each including a water heater, a water system for supplying water to the houses consisting of a supply main, 9. cold water auxiliary main, a conduit extending from said cold water auxiliary main to each house, a hot water auxiliary main, a conduit ex-' tending from said hot water auxiliary main to the water heater of each house, a one-way check valve included in said hot water auxiliary main for preventing water passing from said hot water relieving increase of pressure 01' water therein.

3. In combination, a plurality of houses that are to be supplied with water and each including a water heater, a water system for supplying water to the houses consisting of a supply main, a cold water auxiliary main, a conduit extending from said cold water auxiliary main to each house, a hot water auxiliary main, a conduit extending from said hot water auxiliary main to the water heater of each house, a one-way check valve included in said hot water auxiliary main for preventing water passing from said hot water auxiliary main to said-supply main, and a riser connected to said. hot water auxiliary main.

JOHN WERNER ORNELL. 

